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 JY36HTML-*1Z> Two STS-95 investigations aim to better understand these immune system 
              changes. Both studies use blood and urine samples collected during routine 
              physicals taken before and after the flight. Any changes between pre- 
              and postflight assessments may indicate altered immune response as a 
              result of space flight. Data will be collected from all crewmembers 
              before and after the flight. The first investigation, Cell Immunity 
              and Reactivation of Latent Viral Infections, will determine if stress 
              induEOB[kCTI|ATIONOFTH(O _*/
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 KXJTQfAR\JcSAMB\gARINESHOSPITALSANDNURSINGHOMES*NJUL"bTML**TbEEfderly are susceptible to immune-related diseases and infection because 
            of a decreased immune cell response that occurs with age. Research into 
            immune system suppression and infection-fighting response during space 
            flight will provide important insight into patients affected by immune 
            suppression on Earth. <br>
              <br>
              Nearly all of us come into contact with some form of infection every 
              day but we rarely contract an illness because of our healthy immune 
              response. The Epstein-Barr virus, for example, infects approximately 
              80-90% of the general population, but few people actually contract the 
              disease because viral activity levels are low. Research into the regulation 
              of the immune system during space flight will add to our understanding 
              of the immune system in general and may reveal new avenues of research 
              into immune disorders. 
            <P>&nbsp; 
            <h4>Points of Contact:</h4>
    
                                     
            <font size="-1"><b>Effects of Microgravity on Cell Mediated <br>
            Immunity and Reactivation of Latent Viral<br>
            Infections <br>
            Principal Investigator </b><br>
            Raymond P. Stowe, Ph.D. <br>
            University of Texas Medical Branch <br>
            Galveston, TX <br>
            <br>
            <b>Space Flight and Immune Function <br>
            Principal Investigator </b><br>
            Duane L. Pierson, Ph.D. <br>
            NASA Johnson Space Center <br>            Houston, TX <br>
            <br>
            <a href="pdfs/FS-1998-09-007JSC.pdf"> FS-1998-09-007JSC</a> (PDF Format)<br>
            </font> 
            <P>
    
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              Updated: 25 October 1998<br>
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